Sling Money allows you to transfer supported stablecoins to and from external (non-Sling) wallets on the Solana blockchain. This capability is primarily designed to allow people in countries where Sling Money doesn't have fiat payments to participate in the Sling ecosystem.
Step by step
In order to withdraw stablecoins (USDP & USDC) with external wallet:
Tap your avatar at the top left of your transaction screen
Tap 'Payment methods'
Select 'Add new payment method'
Choose USDC or USDP as the currency for your Payment Method
In Account Type, select 'Crypto wallet - Withdraw money'
Enter the wallet address of your compatible Solana wallet and give it a nickname
Save your Payment Method
If all done correctly, the payment method is added! You can proceed by tapping 'Withdraw money' in your initial screen